C0082Brake System Malfunction Indicator
- Generic OBD-II code · Chassis
- How the car detects it
- Covers the brake system malfunction indicator (red brake warning lamp) as driven or monitored by the brake/stability module. The module commands this lamp for serious brake faults such as low fluid, pressure problems or a control fault, and monitors the output; this code is set when the lamp circuit is open or shorted, the lamp does not respond, or commanded and observed states disagree. It concerns the indicator path rather than the hydraulics, so the underlying brake function may still work while the driver loses an important warning, or the lamp stays on without a brake fault. Electronic brake-system designs route many warnings through this lamp, so it often appears with the brake fault it was meant to announce. No code-specific public bulletin was confirmed; the entry follows the SAE J2012 generic definition.
- What you may notice
- Red brake lamp stuck on or off
- Failed lamp self-check
- Driver loses brake warning
- Likely causes
- LikelyOpen or shorted indicator circuit
- PossibleLamp request not reaching the cluster
- RareFailed indicator bulb or driver
- Repair
- Medium · Often possible to do yourself.Typical cost: €20 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.